MAGNETIC FUSION COMMERCIAL POWER-PLANTS

Toroidal magnetic systems offer the best opportunity to make a commerc ial fusion power plant. They have, between them, all the features need ed; however, no one system yet meets the ideal requirements. The tokam ak is the most advanced system, and the proposed International Thermon uclear Experimental Reactor (ITER) and Tokamak Physics Experiment (TPX ) will build upon the existing program to prepare for an advanced toka mak demonstration plant. Complementary toroidal systems such as the sp herical torus, stellarator, reversed-field pinch, field-reversed confi guration, and spheromak offer, between them, potential advantages in e ach area and should be studied in a balanced fusion development progra m.